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Wayne Beeching's

Becoming an Animator
Adventure Guide

Pixel Graphics

A pixel is a dot on the screen. Computer monitor pixels are bigger than smart phone pixels while TV pixels are rectangular. Images are built from pixels, but the image pixels are rarely shown on the screen at one to one. Almost all images are scaled before they are displayed.

Every hardware pixel, for TV or computer for example, will show one specific colour at any one time. Every image pixel will be set to a specific colour. The data we need to represent a pixel includes the colour data. Colour data includes separate numbers for the primary colours of light: red, green and blue.

Some images can be represented by non-pixel data. Vector graphics is defined by paths, anchor points, handles, colours, gradients. Mesh model data defines vertices, edges, faces, textures and materials. Vector graphics and mesh modells can both be rendered to an image of any size from a relatively small file size.

A pixel image has predictably large file sizes, since we need to save the red, green, and blue colours for every pixel. Some images also include values for transparency. Almost all image files are made smaller by using compression. The extreme example would be an image that has only one colour so that the compression algorithm only needs to save the colour data one time. The meta data remembers the size of the image so that the software can reproduce the full image when we need it.

Keys

key words and key concepts:
orthographic layout, front, side, top, isometric graph paper, planer surface, verticle, horizontal, length, width, depth, slanted line, parallel, hidden lines, object lines, construction lines, elipse, centre, radius, tangents, arcs, third angle projection

To Vector Grahpics

Some images can be represented by non-pixel data. Vector graphics is defined by paths, anchor points, handles, colours, gradients. Vector graphics and mesh modells can both be rendered to an image of any size from a relatively small file size.

Keys

key words and key concepts:
white is most, RGB, RGB mode, additive colours, CMYK, subtractive, pigments in printing, green screening, curves correction, channels to masks, LAB mode (lightness), black and white properties in ps, super smooth, curves, curves and colours, colour opposites, fine tuning colours

To Mesh Modelling

Mesh model data defines vertices, edges, faces, textures and materials. Vector graphics and mesh modells can both be rendered to an image of any size from a relatively small file size.